Nut-locking device.



m. 63!,506. Patented Aug. 22, I899.

J. JURGENSON.

NUT LOCKING DEVICE.

(Application filed. May 17, 1899.)

(No Model.)

UNITED STATES PATENT OFFICE.

JOHN JORGENSON, OF SAN FRANCISCO, CALIFORNIA.

NUT-LOCKING DEVICE.

SPECIFICATION forming part of Letters Patent No. 631 ,506, dated August22, 1899.

Application filed May 1'7, 1899. Serial No. 717,139. (No model.)

To all whom it may concern.-

Be it known that I, JOHN J ORGENSON, a citione side of the nut, havingthe outer end diagonally beveled, and an axle or shaft the end of whichhas V-shaped locking-notches formed in the angle of the end in such amanner that the locking takes place from the end and side.

It also comprises details of construction, which will be more fullyexplained by reference to the accompanying drawings, in which- Figure 1is an end view of the axle audits nut. Fig. 2isadetail view of thelatch. Fig. 3 is a longitudinal section through the axle and nut,showing my locking device.

The object of my invention is to provide a locking device for nuts whichare especially used upon vehicle axles, shafts, or bolts,where the nutsfit upon the end and it is desirable to prevent their turning off atundesirable times, and to so construct the device that the lock can beeasily disengaged when it is desired to move the nut.

In my present device I have shown the invention as applied to avehicle-axle, of which A is the spindle, having the threaded end A, andB is a nut adapted to screw upon this end. Nuts for vehicle uses areusually made with a square body projecting from a circular flange, theflange fitting against the outer end of the box in the hub and thesquare portion of the nut serving for the application of a wrench bywhich the nut is turned on or 0E. In one side of this nut is formed agroove or channel 0, the outer end of which is vertical or parallel withthe end of the nut, and upon the side of the nut this channel extendstoward the inner end of the nut, gradually decreasing in depth until itvanishes in the surthe nut, is made correspondingly taperingin shape, asshown, and gradually decreasing in thickness from a point adjacent tothe pivot to the inner end. Beneath this inclined portion is fixed aspring F, which presses this part outwardly with reference to the sideof the nut, and thus turning the beveled portion D in the oppositedirection itis forced diagonally against the end of the spindle A. G Gare V-shaped grooves or channels formed in the angle where the side andend of the spindle meet. These grooves are made with a longer incline onone sidethan the other, and the beveled side of the latch or pawl Dcoincides with these beveled sides. The opposite or vertical side of thelatch corresponds with the opposite sides of the grooves, which are morenearly radial from the center of the spindle.

When the nut is to be applied, it is turned on in the usual manner byawrench, and the latch or pawl D will move freely over the notches G, byreason of the bevel upon one side and the corresponding shape of thenotches, until the nut is screwed onto the desired seat or point ofadjustment, and the spring F, acting against the longer lever-arm D,causes the latching portion to fall into the notches and to be verysecurely locked therein, so that the nut cannot be turned in theopposite direction without releasing this latch. When the nut is to beremoved, the wrench is slipped over the end of the nut, and by reason ofthe outer end of the latchlever being nearly or quite flush with the endof the nut a wrench of any description can be slipped over it, and as itis moved toward the inner end of the nut it presses the end D of thelever down flush with the surface of the nut, thus raising the outer orlatch end D until it is disengaged and free from the notches G. The nutcan then be turned by the wrench and moved like any ordinary nut. Bythus making the latch it will automatioally lock the nut at any desiredpoint, giving the greatest possible strength to the look by reason ofthe diagonal position of the notches and of the latch with referencethereto, and the inner end of the lever is easily engaged by the wrench,so as to depress it and hold the latch out of engagement as long as thewrench remains upon the nut.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a nut-locking device, a channel made in the side and end of thenut, a latch-lever fulcrumed in said channel having a long arm extendingsubstantially horizontally along the channel upon the side of the nut,and a short arm inclined and beveled and fitting the channel in the endof the nut, a shaft or spindle having notches made around it in theangle formed by the sides and end and adapted to be engaged by the latchand a spring by which the latch is normally held in engagement witheither of the notches.

2. In a nut-locking device, a shaft or spindle having beveled notchesformed at the angle between the sides and end of the spindle, a nutturnable upon threads upon the spindle end, said nut being open at itsouter end and having a channel made in the end, and a correspondingchannel eon nectin g therewith and extending toward the inner end of thenut with a gradually-decreasing depth, a correspondingly-shapedangle-lever fulcrumed in said nut and having a long arm adapted to liein said channel, a spring by which the inner end of the lever isnormally forcedoutwardly, a latch formed at the opposite end or shortarm of the lever, said latch having a transversely-inclined and beveledface adapted to move over the notches of the spindle in one directionand to engage and lock therewith when moved in the opposite direction.

3. In a nut-lock, a spindle having the inclined beveled notches formedaround the angle of the end, a nut having rectangular exterior faces, abell-crank latch-lever fulcrulned in a slot formed in one of the facesand the end of the nut, one end of said latch being transversely beveledto engage the notches in the end of the spindle, the other end or longarm tapered and extending along the side of the nut, a spring by whichthis end is normally forced outwardly to cause thelatch to engage withthe notches of the spindle, said arm being depressed by the placing ofthe wrench upon the nut whereby the latch is disengaged and the nut isturnable to remove it.

In witness whereof I have hereunto set my hand.

JOIIN JORGENSON.

Witnesses:

8. II. NOURSE, .Tnssm O. Bnomn.

